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Journal article
Topological Defects in Solids with Odd Elasticity
Physical review letters, v 127(26), 268001
24 Dec 2021
PMID: 35029487
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Crystallography typically studies collections of point particles whose interaction forces are the gradient of a potential. Lifting this assumption generically gives rise in the continuum limit to a form of elasticity with additional moduli known as odd elasticity. We show that such odd elastic moduli modify the strain induced by topological defects and their interactions, even reversing the stability of, otherwise, bound dislocation pairs. Beyond continuum theory, isolated dislocations can self propel via microscopic work cycles active at their cores that compete with conventional Peach-Koehler forces caused, for example, by an ambient torque density. We perform molecular dynamics simulations isolating active plastic processes and discuss their experimental relevance to solids composed of spinning particles, vortexlike objects, and robotic metamaterials.
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Details
- Title
- Topological Defects in Solids with Odd Elasticity
- Creators
- Lara Braverman - University of ChicagoColin Scheibner - University of ChicagoBryan VanSaders - University of ChicagoVincenzo Vitelli - University of Chicago
- Publication Details
- Physical review letters, v 127(26), 268001
- Publisher
- Amer Physical Soc
- Grant note
- Simons Foundation PHY-1748958 / NSF; National Science Foundation (NSF) Kadanoff-Rice Postdoctoral Fellowship Bloomenthal Fellowship Heising-Simons Scholarship James Franck Institute Undergraduate Summer Research Award 1746045 / National Science Foundation Graduate Research Fellowship; National Science Foundation (NSF) W911NF-19-1-0268 / Complex Dynamics and Systems Program of the Army Research Office DMR-2011854 / University of Chicago Materials Research Science and Engineering Center - National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000738101000006
- Scopus ID
- 2-s2.0-85122539485
- Other Identifier
- 991021877483704721
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- Web of Science research areas
- Physics, Multidisciplinary